1139634 - FF 36 crashes on Linux with >100% CPU

Status: RESOLVED INCOMPLETE

(Firefox :: General, defect)

Description

[tischuer]

User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:36.0) Gecko/20100101 Firefox/36.0
Build ID: 2015022000

Steps to reproduce:

Opened several websites.


Actual results:

Firefox 36 Linux crashes on several sites. I've tried that on several different computers and on a fresh install of openSUSE 13.1, 13.2 and Ubuntu 14.10 (each 64-Bit). Every time I get the same problem/crash. It seems that FF needs 100% CPU power. The Crash Reporter doesn't open.

I am able to reproduce the problem/crash when I open up www.cnet.com, www.phoronix.com, Softpedia (to name just a few).

Someone with the same problem reported the issue in this forum: http://forums.mozillazine.org/viewtopic.php?f=38&t=2913215

Comment 1

[tischuer]

After several tests I can say, that it's a bug in the JavaScript-Engine.

One can reproduce the problem with these sites:

http://www.instantfundas.com/2013/03/how-to-keep-firefox-from-using-too-much.html
http://www.cnet.com/news/

In one of ten attempts Firefox eats up the CPU and crashes without generating a crash-report. So I assume that the ads are responsible for the crashs.

(btw: I've tried it even with the Firefox version from mozilla.org; Chrome does not crash on the same systems.).

Comment 2

[Wayne Mery (:wsmwk)]

Sounds like a problem with flash?  (which I can't reproduce on windows)
Do you still this problem with current version of flash and Firefox?

Comment 3

[tischuer]

No, not a problem with flash. I had never flash installed. As I wrote, it was a problem within the JavaScript engine: When I deactivated the whole JavaScript engine Firefox runs as expected (without any crashes). I haven't investigated this further so I can't tell if the problem still exists.

Comment 4

[Wayne Mery (:wsmwk)]

Thansk for the update